<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8">
    <title>forbidBack</title>
    <link href="http://cdn.static.runoob.com/libs/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet"
          type="text/css">
</head>
<body>
<a id="a1" th:href="${url}"></a>
<script>
    window.onload=function () {
        document.getElementById("a1").click();
    }
</script>
</body>
</html>